Distribution characteristics of liquid in spiral-wound heat exchanger under sloshing conditions

Zheng, Wenke; Jiang, Yiqiang; Wang, Yue; Li, Fengzhi; Cui, Qijie

doi:10.1007/s10973-020-09427-y

Cited by 1 publication

(1 citation statement)

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“…Jian et al 7 experimentally studied the shell-side condensation mechanism of a tubular heat exchanger and found that the heat transfer of the lower pipe was the main heat transfer mode in the entire test section, and increasing the pipe spacing led to a decrease in the shell-side condensation heat transfer coefficient. Zheng et al 8 designed a disc distributor and experimentally analyzed the working fluid distribution under sloshing conditions and found that the influence of the vertical sloshing condition on the fluid was the smallest. Through experiments, Sharqawy et al 9 studied the influence of the flow structure on the performance of a heat exchanger, and Hu et al 10 established a heat transfer coefficient formula for mixed hydrocarbon refrigerant shellside boiling.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effect of Pitch Sloshing on the Heat Transfer and Pressure Drop of an LNG Spiral-Wound Heat Exchanger

Dong¹,

Hao²,

Wu³

et al. 2023

ACS Omega

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With the development and utilization of offshore liquefied natural gas, it is increasingly important to study the influence of the heat transfer performance of a spiral-wound heat exchanger under sloshing conditions. This study focused on the effects of different sloshing amplitudes and sloshing periods on the heat transfer and pressure drop performance of a heat exchanger. Through experimental research, the results showed that the fluctuation of the UA (U is the heat transfer coefficient; A is the heat exchange area) value first increased and then decreased with an increase in the sloshing amplitude. The UA value increased by 12.92% and decreased by 42.03% compared to the static value at 3 and 9°, respectively. The fluctuation in the UA value first decreased and then increased with an increase in the sloshing period. The UA value decreased by 36.66% and increased by 10.82% slowly compared to the static value when the sloshing period was 6 and 20 s, respectively. Based on this, a mathematical model of heat transfer under the condition of pitch sloshing was established.

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